Solar flares on September 30, 2003
The most powerful solar flare in 24 hours
C5.1 (normal) flare - September 30 at 5:40 AM
Solar activity index
Value as of the end of the day on September 30, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 29, 2003 to September 30, 2003
Time zone — UTC+02 (Oslo) — summer time
List of solar flares for September 30, 2003
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.9 | 22:09 | 22:21 | 22:41 | 471 |
| C3.0 | 14:47 | 14:50 | 14:53 | 464 |
| C3.2 | 10:46 | 10:52 | 10:56 | 464 |
| C1.8 | 10:37 | 10:40 | 10:42 | — |
| C2.8 | 09:37 | 10:01 | 10:15 | 464 |
| C3.3 | 07:07 | 07:13 | 07:30 | 464 |
| C5.1 | 05:14 | 05:40 | 06:01 | 464 |
| C1.6 | 04:58 | 05:02 | 05:06 | 464 |
| C2.4 | 03:07 | 03:10 | 03:12 | 464 |